Q. How to close the Spring Boot context, created by annotating a test class with @SpringBootTest, before JUnit 5 stops the JVM (which calls the hooks added with addShutdownHook()) ?
Example:
Assuming a bean like this
@Component
public class SomeBean implements DisposableBean {
public SomeBean() {
var hook = new Thread(() -> System.out.println("Shutdown Hook called"));
Runtime.getRuntime().addShutdownHook(hook);
}
@Override
public void destroy() {
System.out.println("Destroy called");
}
}
and a simple Junit 5 test like this:
@SpringBootTest
class TestJvmShutdownHookApplicationTests {
@Test
void contextLoads() {
}
}
how do I get the call to destroy() to be performed before the JVM shutdown hook?
2021-02-18 13:54:24.540 INFO 18928 --- [ main] .a.t.TestJvmShutdownHookApplicationTests : Started TestJvmShutdownHookApplicationTests in 2.378 seconds (JVM running for 3.687)
Shutdown Hook called
2021-02-18 13:54:24.863 INFO 18928 --- [extShutdownHook] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
Destroy called
Background
it.ozimov:embedded-redis adds a JVM shutdown hook and closes the Redis server before the bean redisConnectionFactory (Lettuce) is destroyed.